Effects of a 4-Week Vitamin B6·B9·B12 Supplementation on the Muscle Recovery and Muscular Function Induced by Acute Eccentric EXERCISE

• 발행기관: J-INSTITUTE
• 저자명: Kim You young Cho Chang mo
• 간행물 정보: 『Kinesiology』Kinesiology vol.4 no.1, 8~16쪽, 전체 9쪽
• 주제분류: 사회과학 > 사회학
• 파일형태: PDF
• 발행일자: 2019.06.30

영문 초록

We examined the effect of a 4-week vitamin B6·B9·B12 supplementation on the muscle recovery and muscular function induced by acute eccentric exercise. Twenty-nine subjects were volunteered for this study, and they were randomly assigned to either vitamin B6·B9·B12 supplementation group(n=14) or placebo group(n=15). Body composition was measured prior to testing. The vitamin B group was given two tablets of vitamin B6·B9·B12 supplement per day from 4 weeks before eccentric exercise until 72 hours after eccentric exercise, whereas the control group was given two placebo tablets. All subjects performed eccentric exercise using Biodex isokinetic machine after treatment period. They performed a total of 4 sets of eccentric exercise with 12 repetitions per set using their non-dominant arm. Blood samples were taken at pre-exercise, immediately after exercise, and at 6, 24, 48, and 72 hour post-exercise. Maximum isometric force(MIF) and range of motion(ROM) were obtained before and immediately after exercise and at 2, 6, 24, 48, and 72 hour post-exercise. Independent t-tests were conducted to analyze differences between groups in physical characteristics and total amount of work of eccen-tric exercise. Lactate dehydrogenase(LDH) concentration, MIF, and ROM were analyzed using 2-way repeated measure ANOVA. A main effect for test session and group effect were significant in LDH concentration(p<.05). A main effect for test session for MIF(p<.05) and ROM(p<.05) was significant. In both groups, LDH concentration significantly increased immediately after exercise and at 48, and 72 hour post-exercise compared to pre-exer-cise(p<.05). LDH concentration of vitamin B group was significantly higher than control group, independent of test session(p<.05). MIF and ROM significantly decreased from immediately after exercise to 48 hours after ex-ercise, and 72 hours post-exercise, respectively, in both groups compared to pre-exercise(p<.05). In conclusion, the results of this study suggest that at least 4-week supplementation of vitamin B6·B9·B12 may not have a positive effect on the recovery of muscle damage and function induced by eccentric exercise.

목차

1. Introduction

2. Methods

3. Results

4. Discussion

5. Conclusion

키워드

Sport Lactate Dehydrogenase Maximal Isometric Force Range of Motion Delayed Onset Muscle Soreness